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Smooth-On / Material reference
Polyurethane

Brush-On™ 35

Brush-On™ 35 is listed by Smooth-On as a polyurethane rubber. The source reports mixed viscosity of Brushable, mix ratio by weight of 100A:67B, pot life of 20 minutes. This record connects 13 reported fields with 3 manufacturer document links. Review the original technical data sheet for the applicable test conditions and processing instructions.

Technical data sheet Safety data sheet
BrushableManufacturer-reported
100A:67BManufacturer-reported
20 minutesManufacturer-reported
16 hoursManufacturer-reported
35Manufacturer-reported
1.29 g/ccManufacturer-reported

Technical & safety documents

3 links
Files open on the manufacturer's document host. Region and language follow the source listing; confirm the revision inside the file.
Open original PDF
TDS
Technical BulletinEnglish · Not specified
Open file
TDS
Ficha Técnica en EspañolSpanish · Not specified
Open file
SDS
Brush-On 35 SDS | EnglishEnglish · United States & Canada
Open file

Reported specifications

13 fields
Material and processing data
PropertyReported valueEvidence
Mixed ViscosityBrushableManufacturer table
ColorGrey-GreenManufacturer table
Mix Ratio By Volume1A:1BManufacturer table
Mix Ratio By Weight100A:67BManufacturer table
Pot Life20 minutesManufacturer table
Cure Time16 hoursManufacturer table
Shore A Hardness35Manufacturer table
Specific Gravity1.29 g/ccManufacturer table
Specific Volume21.5 cu. in./lb.Manufacturer table
Die C Tear Strength57 pliManufacturer table
Elongation @ Break1,000 %Manufacturer table
Shrinkage<.001 in./in.Manufacturer table
Tensile Strength335 psiManufacturer table
Reported values are not independent test results. Original units and table wording are preserved. Extracted TDS rows can depend on the grade, component and source table headings; use the linked page to verify that context. Test methods, sample preparation and cure schedules may differ; consult the original TDS before making a performance comparison.

Selection & processing checks

Distinguish rigid casting plastics, elastomeric rubbers and foams. Their density, hardness scales and processing requirements are not interchangeable.

  • Is this a solid material or an expanding foam?
  • Which hardness scale and cure conditions are reported?
  • What moisture-control and preparation steps does the manufacturer require?
  • Confirm the complete product designation, including any hardener, color or formulation suffix.
  • Read the current SDS for handling, protective equipment, storage and disposal information.

The reported weight ratio for this record is 100A:67B. A weight ratio must not be used as a volume ratio without the appropriate density information.

Missing properties are not estimated. Similar values or shared application labels do not establish a drop-in replacement.

Other materials in this family

View collection
Material / manufacturerFamilyKey specificationDocumentsAdd to comparison
Brush-On™ 40Smooth-OnPolyurethaneBrushableMixed Viscosity16 linked
Brush-On™ 50Smooth-OnPolyurethaneBrushableMixed Viscosity16 linked
Brush-On™ 60Smooth-OnPolyurethaneBrushableMixed Viscosity3 linked
EZ~Spray™ 45Smooth-OnPolyurethaneSprayableMixed Viscosity2 linked
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